Fountain-pen.



G. F. BRANDT.

FOUNTAIN PEN. APPLIUATION FILED AUG. 19, 1912.

'MTNESSES //vv5/vm/z Q Patented Sept. 2,1913.

UNKTFED STAWENT OFFICE. 1

Specification of Letters Patent.

GEORGE rmnnnrn BRANDT, or BOSTON, MASSACHUSETTS.

FOUNTAIN-PEN.

' To all whom it may concern BRANDT, I i sidlng at Boston,

Be it known that I, Gnohen FRANKLIN in the county of Sufiolk and State of Massachusetts, have invented This invention relates to fountain-pens and more particularly to fountain-pens of the self-filling type. In'thes'e pens it is custhe matically filled. Pens of this type are called tomary to provide within'ithe'barrel of the. pen a collapsible ink-container and a presserbar located between theouter wall of the container and the inner "wall of the barrel, said barbeing adapted to be pressedagainst the wall ofthe container, when desired, in order: to collapse said container preparatory to the .fillin'g operation. such pensit is'essential first that the presser bar shall be capable of being readily depressed at any time without the manipulation of any complicated or inconveniently operable parts, and second that during the writing operation the presserr bar be held securely'against the inner wall of the barrel so that it cannot by any possibility exert pressure upon'the ink-container, since the slightest pressure or blow upon the container will cause inl to drip from the pen point.

The general object'of the present 'invention is toproduce agfountain-pen of cheap construction in which these two features are embodied.

Referring nowto' the accompanying draw ings, Figure 1 1s anelev-ation of a fountainpen in which the present invention is embodied, the barrel and certain other parts being shown in section, Fig. 2 is a crosssection of the pen on the line 2-2 of Fig. 1, Figs. 3 ands are perspeetives'of the rictional locking spring-band viewed from opposite sides, and Fig. 5 is a perspective of the presser-ba-r and press-button.

Located in the barrel 1 of the pen is a rub ber' ink-container 3 which is connected in the usual manner with the section 5 in which the pen-point is mounted, it being understood that by pressing upon the ink-container to an ink supply and removing pen-point in the ink-container will be auto-- ressure,

self-fillers, and the construction briefly outlined above is old and well known.

The Presser-bar has fa st thereto or intea: citizen of the United States, re-.

tively wide, and its 'lower wall is at all times below the surface of the barrel. In order to lock the press-button securely in raised, position, a spring band 13 whichhas frictional contact with the barrel 1 is provided with an elongated aperture 15 having astraight edge Patentmse ta;1913. Application filed August 19, 1912. Serial 1%., 715,757;

17 to enter the slot 11 and a curved edge 19 to contact with the ounded surfaceof the press-button; The" ocking spring band is preferably of 'metal and, as stated above, has frictional contact with the barrel so that it is securely held in any angular position to which it may be moved. ,An convenient constructionwhereby this resu t is attained may be employed; and, in the illustrated embodiment, L-shaped slits '21 are cut I through the band approximately opposite the aperture 15; and these slits form s ringht y in tongues 23 which'may be. bent sli wardly, if desired so as to grip t e barrel very securely.

'- The parts are assembled by removing the section 5 and the attached ink-container 3,

slipping the band 13 over the barrel and pushing it along until the elongated aperture 15 registers with the'aperture in the wall of the barrel. The presser-bar is then put in place and the band rotated to lock said bar against the inner wall of the barrel. In the subsequent manipulation of the device the band 13 is grasped and turned about the axis of, the barrel to move its edge 17 into. and out of the slot in the press-button 9.

It has been previously proposed to slidea rigid, apertured sleeve along the barrel of the pen so as to cause the side edges of the aperture to engage oppositely disposed notches in the press-button, but so far as I am aware I am the first tomake guse in a fountain-pen of an angularly movable, frictionally held, lockings ring band having an aperture one of the en edges-of which may be moved into and out of a slot in the pressbutton. I

Attention is directed particularly to the shape and and to the manner in band to force the button into its extreme uper position and thereby hold the presserar tightly against the inner wall of the barrel-of the pen. The slot 11 hasa width -isat all barrel.

, not circumferentiellyfofthe barrel of ton; and its lower wall, as shown in Fig.2, times belowrthe surface of the Con equently the hand .does not come into contact with said lower wall, but

' 23 grip the barrel firmly acts solely to raise the button and thereby to force the Presser-bar firmly against the inner wall of the barrel as shown in Fig. 2. The operative portion of the band is thus wedged between the upper wall of the slot pen and is itself the- 11 and the barrel of the held from slipping out of the e same time the spring ton es and aid in hol g the band securely in place. The resser-bar is thus held from any possible vibration, while at the same time a simple angular movement of the band will unlock the bar and permitit to be depressed.

Havingthus described my invention, what I claim and desire to secure by Letters Patent of the United States is:

1. A fountain peficemprising a cylindrical barrel provided with an aperture .in the side thereof, a friction band concentric with said barrel, movable, about the axis of said barrel and having an aperture elongated in the direction of said movement, a collapsible ink-container in said barrel, a

slot. At

- resser-bar located between the outer wall of said container and the wall of said barrel, and an imperforate press button extending through having a slot in one side extending part way through it to receive the edge of the aperture in said friction band.

e Copies otthls patent may be obtained for live cents each, by Washington, D. C.

said apertures, said button said apertures, said but-ton 2. .A- fountain-pen comprising a cylin di-ical barrel provided with an aperture 1n the side thereof, a friction band concentric with said barrel, movable about the axis of said barrel and in the-direction of said movement, a collapsible ink-container in said barrel, a presserbar located between the outer wall of said container and the and an imperforate a slot on one' side extending partway through it, the width of the slot being greater than the thickness of said friction band and one wall of said slot being arranged to lie atiall times appreciably belowthe circumference of said barrel. in

3. A fountain-pen comprising a cylindrical barrel provided with an aperture inthe side thereof, a friction band concentric with said barrel, movable {about the axisof press button extending through said apertures, said button having having an aperture elongated inner wall of said barrel,

said barrel and having an aperture elongated 1n the direction ofsaid movement, .arccol lapsible ink-container in said barrel, 2;"- presser-bar located betweeni-he outer wall of inn r wall of saidsaid container and the barrel and a press-button extending throu h which is non-concentric with of said button. In testimony name to this specification of .two subscribing GEORGE FRANKLIN minor; Witnesssa v- I I I Faun W.' Gumom H. W. KnNwaY.

having a 0t; said barreland extends approiimately ,obliquelyto the axis whereof Ighsvesigned It} 1, h w r admixin the Commissioner w e 

